Race car driver and stunt driver Ken Block

Irfan Khan / Los Angeles Times

Stunt driver Ken Block drives around a Universal Studios lot in Los Angeles. After founding DC shoes and becoming a multimillionaire, Ken Block became a stunt driver. In one YouTube video, Block can be seen speeding down an empty Oakland Bay Bridge, ripping a set of tire-smoking doughnuts between two trolley cars, and seemingly breaking the laws of physics by twisting the car in mid-flight on a 90-degree turn after jumping a hill. Within 24 hours, the video was viewed more than 5 million times.

Stunt driver Ken Block at a Universal Studios lot in Los Angeles. An athletic 45-year-old adrenaline junkie, Block has parlayed his doughnut-carving skills into a lucrative business. His YouTube videos have become Internet sensations, drawing advertisers such as Ford and energy drink company Monster.